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Multimode pumped continuous-wave solid-state Raman laser.
A S Grabtchikov1, V A Lisinetskii, V A Orlovich
1B I Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus. asg@dragon.bas-net.by
Optics Letters
|December 9, 2004
Summary
This study shows continuous-wave operation of a solid-state Raman laser using barium nitrate. The laser achieves efficient Stokes power generation with a low pump power threshold.
Area of Science:
- Optics and Photonics
- Solid-State Lasers
- Nonlinear Optics
Background:
- Solid-state Raman lasers offer tunable wavelength generation.
- Barium nitrate (Ba(NO3)2) is a promising nonlinear crystal for Raman applications.
- Efficient laser operation requires understanding oscillation thresholds and power densities.
Purpose of the Study:
- To demonstrate continuous-wave (CW) operation of a solid-state Raman laser.
- To investigate the performance of barium nitrate as a Raman medium.
- To characterize the laser's oscillation threshold and output power density.
Main Methods:
- Utilized a singly resonant optical cavity.
- Employed multimode radiation for pumping the barium nitrate crystal.
- Measured pump power threshold and Stokes power density.
Main Results:
- Achieved continuous-wave operation of the solid-state Raman laser.
- Determined the Raman oscillation threshold at approximately 2 W of pump power.
- Obtained a Stokes power density of up to 500 kW/cm2 at 60 kW/cm2 pump power density.
Conclusions:
- Barium nitrate is an effective Raman medium for CW solid-state lasers.
- The demonstrated laser design shows efficient power conversion.
- This work contributes to the development of tunable solid-state laser sources.